Aight, so I was pulling my hair out trying to figure this one out. Turns out, no one puts beds in VW vans, and all the examples I had, were from vans with no motor in the back taking up all the storage space. So, I kinda had to figure this one out on my own, but I think I have something that will work. I think 
So these boxes will be covered in cushions, and the part that flaps up will transform this from a couch into a bed. It would fit the dimensions of a regular sized mattress (as opposed to twin or queen), which would be quite comfortable considering the size of the van I think.
I’d like to have a table that could be set up there when it’s in couch form, and probably some good storage inside the boxes. The problem is how much space the motor takes up. I wanted to have some cabinets in there somewhere as well, but at this point I’m not so sure. And working around the double doors on the side is also an issue.
PS: There is no backing on those doors, or the roof, or over half the van yet. I’m still just laying the groundwork.
-Joe